<div class="panel" ng-class="panelHeaderClass">
  <div class="panel-heading">
    {{heading}}
    <div class="pull-right" ng-show="isCollapsable">
      <i ng-click="toggleOpen()" title="{{getToggleTooltip()}}" class="glyphicon pointer" ng-class="{'glyphicon-chevron-down': !isOpen, 'glyphicon-chevron-up': isOpen}"></i>
    </div>
  </div>
  <div ng-hide="!isOpen">
      <div ng-class="panelBodyClass" ng-transclude></div>
  </div>
</div>
